shellcheck: test_keygen.sh issues

In test_keygen.sh line 9:
if [ $# -eq 0 ] || [ ! -f ${1} ] || [ ! -x ${1} ]; then
                          ^-- SC2086: Double quote to prevent globbing and word splitting.
                                           ^-- SC2086: Double quote to prevent globbing and word splitting.


In test_keygen.sh line 16:
UNAME_OS=`uname -s | cut -d_ -f1`
         ^-- SC2006: Use $(..) instead of legacy `..`.


In test_keygen.sh line 67:
check_no_file() { [ -e "$1" ] && die "$1 was not supposed to exist" || true; }
                              ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.


In test_keygen.sh line 68:
check_files_eq() { cmp "$1" "$2" || die "$1 and $2 did not match: `dump $1` vs `dump $2`"; }
                                                                  ^-- SC2006: Use $(..) instead of legacy `..`.
                                                                        ^-- SC2086: Double quote to prevent globbing and word splitting.
                                                                               ^-- SC2006: Use $(..) instead of legacy `..`.
                                                                                     ^-- SC2086: Double quote to prevent globbing and word splitting.


In test_keygen.sh line 71:
DATA_DIR=`mktemp -d -t tor_keygen_tests.XXXXXX`
         ^-- SC2006: Use $(..) instead of legacy `..`.


In test_keygen.sh line 80:
trap "rm -rf '$DATA_DIR'" 0
              ^-- SC2064: Use single quotes, otherwise this expands now rather than when signalled.


In test_keygen.sh line 83:
DATA_DIR=`cd "${DATA_DIR}" && pwd`
         ^-- SC2006: Use $(..) instead of legacy `..`.


In test_keygen.sh line 146:
${TOR} --DataDirectory "${ME}" --list-fingerprint > "${ME}/stdout" && die "Somehow succeeded when missing secret key, certs: `cat ${ME}/stdout`" || true
                                                                   ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.
                                                                                                                             ^-- SC2006: Use $(..) instead of legacy `..`.
                                                                                                                                  ^-- SC2086: Double quote to prevent globbing and word splitting.


In test_keygen.sh line 283:
${TOR} --DataDirectory "${ME}" --list-fingerprint > "${ME}/stdout" && die "Tor started with encrypted secret key and no certs" || true
                                                                   ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.


In test_keygen.sh line 372:
${TOR} --DataDirectory "${ME}" --list-fingerprint >"${ME}/stdout" && die "Successfully started with mismatched keys!?" || true
                                                                  ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.


In test_keygen.sh line 388:
${TOR} --DataDirectory "${ME}" --passphrase-fd 1 > "${ME}/stdout" && die "Successfully started with passphrase-fd but no keygen?" || true
                                                                  ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.


In test_keygen.sh line 404:
${TOR} --DataDirectory "${ME}" --no-passphrase > "${ME}/stdout" && die "Successfully started with no-passphrase but no keygen?" || true
                                                                ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.


In test_keygen.sh line 420:
${TOR} --DataDirectory "${ME}" --newpass > "${ME}/stdout" && die "Successfully started with newpass but no keygen?" || true
                                                          ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.


In test_keygen.sh line 458:
${TOR} --DataDirectory "${ME}" --keygen --passphrase-fd ewigeblumenkraft > "${ME}/stdout" && die "Successfully started with bogus passphrase-fd?" || true
                                                                                          ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.


In test_keygen.sh line 475:
${TOR} --DataDirectory "${ME}" --keygen --passphrase-fd 1 --no-passphrase > "${ME}/stdout" && die "Successfully started with bogus passphrase-fd combination?" || true
                                                                                           ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.